Mining-machine.



Patented Oct. I6, |900. E. OTUULE.

MINING MACHINE.

[Application filed Feb. 17, 190D.)

(N0 Model.) 2 Sheets-Sheet l.

M 5% 10 "f5 1a 1f 51 ii .1' V5?. 'f

ATTORNEYS.

Patented Oct. I6, |900.

E. UTOOLE.

MINING MACHINE.

(Application led. Feb. 17, 1900.) (No Model.) 2 Sheets-Sheet 2.

INVENTOR ATTORNEYS.

.du/ard 0 T0020.

lllrtrrn hrhr Futon;

lil/lINlNG-IVICHINEIl SPECIFICATION forming part of Letters Patient N o.659,984, dated October 16, 1900. Application filed February 17, 1900.Serial No. 5,604. (No model.)

T0 all whom it may concern,.-

Be it known that I, EDWARD OTooLE, a citizen ofthe United States ofAmerica, residin g at Leisenring,in the county of Fayette and State ofPennsylvania, have invented certain new and useful Improvements inMining-Machines, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inmining-machines, and is particularly adapted for use in mining coal orother mineral substances.

The object of my invention is to construct a machine of this characterwith a pair of cutter chains operating in opposite directions and withmeans for imparting an oscillatory movement to the said chains duringtheir operation.

Briefly described, my invention comprises a suitable frame carryinggears upon which the cutter-chains are trained and operated by asegmental rack and worm for imparting the oscillating movement to thecutter-chains and suitable operating means for the said worm and gears,all of which construction will be hereinafter more specificallydescribed and then particularlypointed out in the appended claims; andin describing the invention in detail reference will be had to theaccompanying drawings, forming a part of this specification and whereinlike numerals of reference indicate like parts throughont the severalviews of the drawings, in which* Figure 1 is a side view of my improvedmining-machine. Fig. 2 is a top plan view thereof. Fig. 3 is atransverse vertical sectional view taken on the line 8 3 of Fig. 1. Fig.4is a detail perspective view of the supportingshaft-s for the gearing.Fig. 5 is a detail perspective View of the vertical supporting-shaft forthe gears upon which the cutter-chains are trained. Fig. 6 is across-sectional view taken on the line 6 6 of Fig. 7. Fig. 7 is a topplan view of a part of one of the guides for the cutter-chain, showingthe latter therein. Fig. Sis a horizontal sectional View of theclutch-gearing for the worm. Fig. 9 is a perspective view of theclutch-operating lever.

Referring to the drawings by referencenumerals, l indicates a base, uponwhich is mounted a pair of inclined standards 2, having bearings 3 ontheir upper ends, in which is journaled the horizontally-extendingrockshaft 4, provided on each end with a tenon 5, these tenons extendingoutwardly beyond the standards 2. Upon the rock-shaft 4, between thestandards 2, are mounted mitergears 6 7, the former keyed to or securedto the rock-shaft bya vcollar 8, the latter having a collar 9, which isconnected t-o a pinion 10, mounted on said rock-.shaft 4. The side barsl1 of the frame are mounted at their forward ends on the tenons 5 of therock-shaft and are rigidly secured thereto, and at their other endsthese side bars of the frame carry vertical shafts 12, extending aboveand below the said side bars, and upon which extending ends are mountedthe upper guide l4and the lower guide 15 for the endless cutter-chains.Mounted within these guides, near the ends thereof, are sprocket-wheels17, over which the cutter-chains 18 are trained, said chains operatingthrough the guides lengthwise of the same, with only the cutting-teethof the chains extending beyond the outer face of the guides. For thispurpose the guides are each provided with an elongated runway 19,extending from end to end of the guides and terminating in the outerface of the guides in a groove 20, through which the teeth 18 of thecutter-chains 18 travel during the travel of the links of which thecutter-chain consists through the runway 19. The upper of thesecutter-chains is trained over its sprocketwheels in the guide 14 and asprocket-wheel 21, which may be either formed integral with or securedto a ruiter-gear 22, rotatably mounted on a vertical shaft 23. Thisvertical shaft 23 is centrally secured to the horizontal shaft 24 andhas rotatably mount ed thereon, below such shaft 4, a miter-gear 24,having formed integral therewith or secured thereto a sprocket-wheel 25to receive the lower endless chain, the latter operating over saidsprocket-wheel in its guide 15. The miter-gear 24 is held againstdisplacement upon its shaft either by keying or by means of the collar2G, while the miter-gear 22 is likewise held against displacement eitherby keying or by thef'collar2fZ. Thesemitergears 22 2'4 mesh lwiththeruiter-gears 6 jand 7 on the rock-shaft 4, so that when motion iscommunicated to the gear 7, by reason of its connections with the pinion10, the gears over which the chains .are trained will be. operatedsimultaneously. "Anoscillatory'ori up-and-down movement is imparted tothe cutter-chains by means of a segmental erac'kg 28, the ends of whichare rigidly connected to the ends of the shaft 23. This rack is' adaptedto engagea woriniforimpartinglthe oscillatory movement to the frame andcut-F ter-chains, as will .nOWbe'deS'cribed The base 1 has mountedthereon, besides the inclinedstandards2, a pairlofyertical sandardsi29,fin which fis journaled la shaft: 30, shaving :a vpinion 31 y'mountedthereon to; mesh with `the vpinion lO'andWiththeldrive-l pinion 32.ABearings'33 are mountedzon 'the upper ends'of these standards 29 Iandhavej: journaled 'therein a shaft 34, upon which is mounted to mesh withthe'pini'on3la pinion 35, so that this shaft may be driven simul-ffaneously with `the shaft-30. This shaft 34, has loosely mounted thereona pairofmiterf gears 36 37, each havingfclutch-ibushingsfal-i ternatelyengagedr 'by Athe `'clutchsleeve -38,y arranged upon the shaft 34 .fand:adapted toi be shifted longitudinally Vupon such shaftg so as tolalternately engage A'the clutch-'bushy ings of the miter-gears.This-clutchsleevef`v 38 is `provided with a peripheral Iflange f39,which -is adapted -to .be'engaged bythe-shift-z ing vpin or finger 40,`mounted at 'theupperf end of lthe segmental rack, and -byiashiftingfork 41.

`Mounted upon the 'base l is a shaft 42,'i which hasrotatablyse'curedfon-itsupper endl a Worm 43 foren gagementwiththesegmentals rack 28 and carriesa Ybevelforimiteirgear 43"?for engagement with the'miter-'gears 36 and 37.

The Iframe is strengthened by connecting braces 44 and 45 -tothe-upperand'lower ends of the rock-shaft Vv23 and upper fand lower;Cutter-'chain guides, respectively.

The operation of thefdeviee is as =follows: The drive-pinion 32 `beingoperated, 'motionf isimpartedltothe pinions 3l, 35, and 10, re-fvol-.ving the bevel-gear`7 and operatingge'ars` 22 24, the said gears 2224 operatingfinoppo sitedirections and imparting lthe samefmof tion -tothe cutter-chains 18, the sprocketsI mounted 4upon the gears `22 24fcausing'thel operation of the 'cutter-chainsl'S. Simultaneously withthe operation of the'cutter-'chainsi the Worm 43 is rotated,which,1meshi'ng1withl the rack 28, will give an oscillating fmove= mentto '.theframe,carryingftheicutter-ehains in the samedirectionfand =if'the movement? of the lframe :is in the :upward direction the sameWill'continne until Athe shifting Apin lat' the'head of the rack Acomesinto'engagementf with the flange 39 of the v'clutch-'sleeve con-ynecting the gear 37 and:causingthe-samefto rotate the worm l:in anopposite-direction,rim-i parting the downward movement to the frame.Vhen the frame has freached the limit of its downward movement, thehandle 4l is operated, causing the shifting fork to move'theclutch-sleeve in the opposite direcltion and reversing the movement ofthe frame.

lItisthou'ght that themany'advantages of my improved mining-machine canbe readily Vlunderstood from the foregoing description,

taken in connection with the accompanying drawings, and it will be notedthat various :changes may -be -made yin .thedetails of constructionwithout departing from the general spirit 'off my nverti'on.

Having thus fully described my invention, what I claim asn'ew',-and*desireto secure by Letters lPa'tent, iisl.Infacoal-miningniachine,thefcombination with lthe fbase fand inclinedsupportingstandards,=of 2a frocksshaft "mounted in said standardsravertically-disposed shaft 23 connectedcentrallyoftheends `of saidrock-shaft, miter-gears'22,f24 loosely mounted on said shaft 23,ruiter-gears 6,17 ,loosely mounted-on the rock-shaft*foriengagement with'theA gears 22,124, aframe mounted on 'the -ends of the rock-shafmguidescarried by said frame, endless cutter-'chains disposed one above theother, said chains foperating through Vsaid guides andengaging `thegears22, 24, vmeans connectedltosaidmiter-gear 7 fordriving'the train ofEmitergearsand operating said chains, a werticallyf-disposed 'rotatingworm, a segmental rack connected to the shaft 23 'and engagingsaid worm,and means for-shifting the frotation of said wormto impartanoscillatoryfmovemenft to the fcutter-'chains simultaneouslywvith theirendless "travel, substantiallyfas described.

2. lIn a coal-mining-machine, the combina- 'tion with lthe base andsupporting-standards 2,-'of a rockshafftfcarried -bysaid standards, avertically-*disposed fshaft connected to the rock-.shaft Acentrallyofits fends, a ftrain of miter-gears looselyfmountedcon said shafts,"a

^ fram'elmo'unted on=the endsof therock'shaft,

guides'carried bysaidfframe, apairof endless cutter-chains operatingthrough said guidesfand engaging the -miter-gears'on thevertically-disposed shaft, a segment-shaped rackfcarriedv bysaid-vertically-disposed shaft, a rotating worm engaging lsaid rack, andmeans for shifting `the rotation of said Worm to impart an oscillatory7movement to said cutter-chainssimultaneously with 4their endlesstravel, substantially as described.

3. AIn a coal-mining machine, the combination 'With'the base, `theinclined supportingstandards '2, andthe vertical standards 29, of therock-shaft `mounted-on said standards 2, the vertically-disposed shaft23 connected :to said rock-shaft, .the tra/in vof vintermeshingmiter-gears loosely fmounted on said shafts, meansconnectedtorone ofsaid gears -fordriving'the.=t1ain,lthe frame mounted on'the ends of saidrock-shaft, the guides carried bysaid roo l IIO to the cutter-chains simultaneously With their endless travel, substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

EDVARD OTOOLE. Witnesses:

W. H. HUGHS, GEO. W. L. BATON.

